Fuel Cost Calculator
Calculate fuel expenses for any trip based on distance, vehicle mileage, and current fuel prices.
* All calculations are approximate.
How Fuel Cost Calculator Works?
Calculate fuel expenses for any trip based on distance, vehicle mileage, and current fuel prices.
Enter the total distance you plan to travel in kilometres.
Input your vehicle's mileage (fuel efficiency) in km per litre — check your owner's manual or calculate from past fill-ups.
Enter the current fuel price per litre for petrol, diesel, or CNG.
The calculator divides distance by mileage to find the total fuel required in litres.
It then multiplies fuel required by the price per litre to give you the total fuel cost and cost per kilometre.
Formula Used
Fuel Required (litres) = Distance (km) ÷ Mileage (km/L); Total Cost = Fuel Required × Fuel Price per Litre
Actual costs may vary based on driving conditions, traffic, AC usage, and vehicle load. Use your real-world mileage for best accuracy.
Important — Read Before You Decide
- Fuel prices vary between states and even between pumps in the same city
- Air conditioning usage can reduce mileage by 10–20%
- Highway driving gives better mileage than city stop-and-go traffic
- Tyre pressure directly impacts fuel efficiency — check monthly
- Carrying excess weight in the car increases fuel consumption
- Aggressive driving (rapid acceleration and braking) wastes up to 33% more fuel
- Fuel prices are revised daily in India based on global crude oil prices
- Ethanol-blended fuel (E20) may reduce mileage slightly but costs less
What Happens If You Ignore These?
- Underestimating fuel costs can blow your travel budget
- Ignoring mileage degradation leads to consistently higher spending
- Not comparing fuel prices across pumps wastes money over time
- Poor vehicle maintenance can increase fuel costs by 20–40%
Smart Tips
- Fill fuel in the morning when it's cooler for slightly better density
- Use cruise control on highways to save up to 14% fuel
- Service your vehicle regularly — a clean air filter alone improves mileage by 10%
- Consider carpooling to split fuel costs on regular commutes
- Track your actual mileage over time — it degrades as the vehicle ages
Frequently Asked Questions
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